I hear ya, thanks. Maybe just go with the plotter first then. Any printers you can recommend?$5000 won't be enough unless you find a super deal on used equipment.
No money, no knowledge, no business plan. Well I would advise you to get hired at a local sign shop, learn some stuff and find out what you can do and what clients do pay for. 5k is half the price of a professional grade entry lever printer.
With that money you really gotta get lucky, especially up here. There was a Mimaki JV33-160 going for $4,500 in Burgessville at the end of November, not sure if it's still there.
But you may want to get a cheap cutter and outsource printing till it makes sense to buy one.
There's lots of threads about people wanting to get into the business on here, I would do a search and read through those.